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This lab activity has learners create a pendulum with a one-second period.

This activity uses Jell-O(R) to introduce learners to microfluidics, the flow of fluids through microscopic channels.

This series of chemistry stations is designed to accompany the PBS documentary about African-American chemist "Percy Julian: Forgotten Genius." Each of the six stations features either a chemical or p

In this activity, learners will explore globes of frozen water to learn how to ask and then answer 'investigable' questions. The activity web page includes a short video demonstration.

In this activity, learners of all ages can become food scientists by experimenting with flour and water to make basic pasta.

This paper describes a working-model demonstration of Ernest Rutherford's 1911 experiment about the nature of atoms.

In this activity, learners determine the elastic and plastic properties of different types of metal wires.

In this activity, learners identify different classes of matter based on physical properties.

Water treatment on a large scale enables the supply of clean drinking water to communities.